Dear all,
I’m a new user of RTKLIB, I’ m tring to find the good configuration to optain the minimum or difference between a post processing made with a commercial soft and RTKLIb.
I have a base station and 6 rover ones.
The horizontal error between the reference coordinates and the post processed with RTKlib are Ok. However for the vertical error (ellipsoidal height) reaches for some of my stations 5cm +/- 1cm, which is high.
I tested different configurations but do not find the best one. My questions are :
- Does the vertical error can come from a difference in ellipsoid model?
- Should I apply both antenna correction on the base and rover stations?
- Do you have an other idea of where my error can come from?
Thank you very much for your help.
Below is the configuration file I use for post-processing.
rtkpost options (2020/03/25 05:01:51, v.2.4.3 b33)
pos1-posmode =static # (0:single,1:dgps,2:kinematic,3:static,4:movingbase,5:fixed,6:ppp-kine,7:ppp-static,8:ppp-fixed)
pos1-frequency =l1+l2 # (1:l1,2:l1+l2,3:l1+l2+l5,4:l1+l5)
pos1-soltype =forward # (0:forward,1:backward,2:combined)
pos1-elmask =15 # (deg)
pos1-snrmask_r =off # (0:off,1:on)
pos1-snrmask_b =off # (0:off,1:on)
pos1-snrmask_L1 =0,0,0,0,0,0,0,0,0
pos1-snrmask_L2 =0,0,0,0,0,0,0,0,0
pos1-snrmask_L5 =0,0,0,0,0,0,0,0,0
pos1-dynamics =off # (0:off,1:on)
pos1-tidecorr =on # (0:off,1:on,2:otl)
pos1-ionoopt =brdc # (0:off,1:brdc,2:sbas,3:dual-freq,4:est-stec,5:ionex-tec,6:qzs-brdc,7:qzs-lex,8:stec)
pos1-tropopt =saas # (0:off,1:saas,2:sbas,3:est-ztd,4:est-ztdgrad,5:ztd)
pos1-sateph =brdc # (0:brdc,1:precise,2:brdc+sbas,3:brdc+ssrapc,4:brdc+ssrcom)
pos1-posopt1 =off # (0:off,1:on)
pos1-posopt2 =on # (0:off,1:on)
pos1-posopt3 =off # (0:off,1:on,2:precise)
pos1-posopt4 =off # (0:off,1:on)
pos1-posopt5 =off # (0:off,1:on)
pos1-posopt6 =off # (0:off,1:on)
pos1-exclsats = # (prn …)
pos1-navsys =5 # (1:gps+2:sbas+4:glo+8:gal+16:qzs+32:comp)
pos2-armode =continuous # (0:off,1:continuous,2:instantaneous,3:fix-and-hold)
pos2-gloarmode =on # (0:off,1:on,2:autocal)
pos2-bdsarmode =on # (0:off,1:on)
pos2-arthres =3
pos2-arthres1 =0.9999
pos2-arthres2 =0.25
pos2-arthres3 =0.1
pos2-arthres4 =0.05
pos2-arlockcnt =0
pos2-arelmask =0 # (deg)
pos2-arminfix =10
pos2-armaxiter =1
pos2-elmaskhold =0 # (deg)
pos2-aroutcnt =5
pos2-maxage =30 # (s)
pos2-syncsol =off # (0:off,1:on)
pos2-slipthres =0.05 # (m)
pos2-rejionno =30 # (m)
pos2-rejgdop =30
pos2-niter =1
pos2-baselen =0 # (m)
pos2-basesig =0 # (m)
out-solformat =llh # (0:llh,1:xyz,2:enu,3:nmea)
out-outhead =on # (0:off,1:on)
out-outopt =on # (0:off,1:on)
out-outvel =off # (0:off,1:on)
out-timesys =gpst # (0:gpst,1:utc,2:jst)
out-timeform =hms # (0:tow,1:hms)
out-timendec =3
out-degform =deg # (0:deg,1:dms)
out-fieldsep =
out-outsingle =off # (0:off,1:on)
out-maxsolstd =0 # (m)
out-height =ellipsoidal # (0:ellipsoidal,1:geodetic)
out-geoid =internal # (0:internal,1:egm96,2:egm08_2.5,3:egm08_1,4:gsi2000)
out-solstatic =all # (0:all,1:single)
out-nmeaintv1 =0 # (s)
out-nmeaintv2 =0 # (s)
out-outstat =off # (0:off,1:state,2:residual)
stats-eratio1 =100
stats-eratio2 =100
stats-errphase =0.003 # (m)
stats-errphaseel =0.003 # (m)
stats-errphasebl =0 # (m/10km)
stats-errdoppler =10 # (Hz)
stats-stdbias =30 # (m)
stats-stdiono =0.03 # (m)
stats-stdtrop =0.3 # (m)
stats-prnaccelh =10 # (m/s^2)
stats-prnaccelv =10 # (m/s^2)
stats-prnbias =0.0001 # (m)
stats-prniono =0.001 # (m)
stats-prntrop =0.0001 # (m)
stats-prnpos =0 # (m)
stats-clkstab =5e-12 # (s/s)
ant1-postype =rinexhead # (0:llh,1:xyz,2:single,3:posfile,4:rinexhead,5:rtcm,6:raw)
ant1-pos1 =0 # (deg|m)
ant1-pos2 =0 # (deg|m)
ant1-pos3 =0 # (m|m)
ant1-anttype =*
ant1-antdele =0 # (m)
ant1-antdeln =0 # (m)
ant1-antdelu =0 # (m)
ant2-postype =rinexhead # (0:llh,1:xyz,2:single,3:posfile,4:rinexhead,5:rtcm,6:raw)
ant2-pos1 =0 # (deg|m)
ant2-pos2 =0 # (deg|m)
ant2-pos3 =0 # (m|m)
ant2-anttype =*
ant2-antdele =0 # (m)
ant2-antdeln =0 # (m)
ant2-antdelu =0 # (m)
ant2-maxaveep =0
ant2-initrst =off # (0:off,1:on)
misc-timeinterp =off # (0:off,1:on)
misc-sbasatsel =0 # (0:all)
misc-rnxopt1 =
misc-rnxopt2 =
misc-pppopt =
file-satantfile =D:/Documents/toto/Travail/GNSS/DATA/Antenna_correction/LEIAR10-A.atx
file-rcvantfile =D:/Documents/toto/Travail/GNSS/DATA/Antenna_correction/igs08.atx
file-staposfile =
file-geoidfile =
file-ionofile =
file-dcbfile =
file-eopfile =
file-blqfile =
file-tempdir =
file-geexefile =
file-solstatfile =
file-tracefile =